EP3317140A1 - Aircraft seat attachment provided with a system for releasing the plunger - Google Patents

Aircraft seat attachment provided with a system for releasing the plunger

Info

Publication number
EP3317140A1
EP3317140A1 EP16732648.7A EP16732648A EP3317140A1 EP 3317140 A1 EP3317140 A1 EP 3317140A1 EP 16732648 A EP16732648 A EP 16732648A EP 3317140 A1 EP3317140 A1 EP 3317140A1
Authority
EP
European Patent Office
Prior art keywords
plunger
ring
seat fastener
seat
rail
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16732648.7A
Other languages
German (de)
French (fr)
Other versions
EP3317140B1 (en
Inventor
Rémy MARAIS
José BERNARDO DE MORAIS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Seats SA
Original Assignee
Zodiac Seats France SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zodiac Seats France SA filed Critical Zodiac Seats France SA
Publication of EP3317140A1 publication Critical patent/EP3317140A1/en
Application granted granted Critical
Publication of EP3317140B1 publication Critical patent/EP3317140B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
    • B64D11/06—Arrangements of seats, or adaptations or details specially adapted for aircraft seats
    • B64D11/0696—Means for fastening seats to floors, e.g. to floor rails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/005—Arrangement or mounting of seats in vehicles, e.g. dismountable auxiliary seats
    • B60N2/015—Attaching seats directly to vehicle chassis
    • B60N2/01508—Attaching seats directly to vehicle chassis using quick release attachments
    • B60N2/01516—Attaching seats directly to vehicle chassis using quick release attachments with locking mechanisms
    • B60N2/01558—Attaching seats directly to vehicle chassis using quick release attachments with locking mechanisms with key and slot
    • B60N2/01575—Attaching seats directly to vehicle chassis using quick release attachments with locking mechanisms with key and slot key sliding inside the vehicle floor or rail

Definitions

  • the present invention relates to an aircraft seat fastener provided with a plunger release system.
  • the passenger seats of civil aircraft are generally mounted on a rail constituted by a profile having an upper lip on which the seat fastener is tightened. This lip is machined to allow the insertion of the lower part of the fastener.
  • a seat is usually attached to the rail with at least three fasteners, typically four, two at the front of the seat and two at the back.
  • the seat fastener must perform two main functions, namely the tightening of the fastener on the rail lip to prevent any movement, and for the rear fasteners, the transfer of the longitudinal loads in the event of a crash, for example from the seat to the seat. rail.
  • the fastener comprises for this purpose pins to be positioned under the lip of the rail.
  • the clip comprises a plunger vertically movable relative to the body of the clip to allow a clamping of the rail between the pins and the plunger.
  • Plungers with a spring return spring do not allow the seat to slide to the station. Indeed, such fasteners are notched at the first rail holes.
  • the screw plunger fasteners require during screwing to a setting operation in the lathe of the rail.
  • a plunger movably mounted in translation relative to said body so as to fix said seat fastener to a rail by clamping a lip of said rail between said stud and said plunger, characterized in that said seat clip incorporates a clutch release system of said plunger.
  • the invention thus makes it possible to bring the seat to its station without external tools, to then automatically release the plungers by means of the clutch release system, to tighten them with a predefined torque, and then to visually verify that the system is in place to get rid of a "false lock".
  • the assembly and disassembly cycle is further simplified, since the transition from the mounting position to the disassembly position requires only a simple unscrewing.
  • said disengaging system comprises a ring mounted to move in translation relative to said body, said ring cooperating via a helical connection with a screw on which said plunger is mounted.
  • said plunger is mounted on an end portion of said screw and comes into contact against an abutment carried by said screw. According to one embodiment, said plunger is movable between a rest position in which said plunger is recessed relative to said rail and an active position in which said plunger bears against the lip of said rail.
  • At least one resilient member is compressed between said plunger and said body when said plunger is in the rest position.
  • said seat fastener comprises two resilient members constituted by two springs positioned on either side of said screw inside recesses each formed partly in said plunger and partly in said body.
  • a locking member is able to pass said ring: a locked state in which said locking member blocks a displacement of said ring relative to said body,
  • said ring comprises a stop intended to come into contact with the body following a screwing of said screw made after the passage of said ring in an unlocked state. This makes it possible to control the clamping force applied to the rail.
  • said locking member is constituted by a cam rotatably mounted relative to said body between a first angular position, said locking position, wherein said cam cooperates with a correspondingly shaped groove made in said ring, and a second angular position, said unlocking position, wherein said cam is disengaged from said groove in the ring.
  • the passage from one position to the other of said cam is adapted to be performed by means of an operating device.
  • said operating device is constituted by a spring clip having each of its ends cooperating with a corresponding groove formed in a face of said cam.
  • said spring clip is movable between a forward stop position corresponding to said locking position of said locking member and a rear stop position corresponding to said unlocking position of said locking member.
  • FIG. 1 and 2 respectively show exploded perspective and perspective views of a fastener according to the present invention
  • FIG. 4a and 4b illustrate the steps of disassembly of the seat fastener according to the present invention.
  • Figures 1 and 2 shows a perspective view of a fastener 10 provided with a body 1 1 attached to an aircraft seat leg 12 and pins 13 integral with the body 1 1 intended to come into contact against a lower face a lip of a rail 14 shown in Figure 3a.
  • a plunger 16 movable in translation relative to the body 1 1 makes it possible to secure the fastener 10 to an aircraft rail 14 by clamping the rail 14 between the studs 13 and the plunger 1 6.
  • the fastener 10 incorporates a clutch release system 17 of the plunger 16 provided with a ring 20 mounted to move in translation relative to the body 11.
  • the ring 20 cooperates via a helical connection with a screw 21 on which is mounted the plunger 16.
  • the ring 20 is locked in rotation relative to the body 1 1 and is movable in translation relative to the body January 1.
  • the plunger 1 6 is linked in translation with the screw 21 and is movable between a rest position in which the plunger 1 6 is set back relative to the rail 14 and an active position in which the plunger 16 bears against the lip of the rail 14.
  • the plunger 1 6 is mounted on an end portion of the screw 21 of frustoconical shape and comes into contact against a stop 24 carried by the screw 21.
  • the abutment 24 may be constituted for example by an elastic ring inserted in a groove formed at the outer periphery of the screw 21.
  • a locking member 25 is able to pass the ring 20 of a locked state in which the member 25 blocks the displacement of the ring 20 relative to the body 1 1 to an unlocked state in which the member 25 allows the displacement of the ring 20 relative to the body 1 1 in particular for passing the plunger 1 6 from the rest position to the active position.
  • the locking member 25 is constituted for example by a cam mounted to rotate relative to the body 1 1 between a first angular position, said locking position, in which the cam 25 cooperates with a groove 26 of shape corresponding in the ring 20, and a second angular position, said unlocking position, wherein the cam 25 is disengaged from the groove 26 formed in the ring 20.
  • the cam 25 may for example take the form of a shaped part cylindrical provided with a flat at its outer periphery.
  • the passage from one position to the other of the cam 25 is effected by means of an operating device 30 constituted for example by a spring clip having each of its ends cooperating with a corresponding groove 31 formed in an end face. of the cam 25.
  • the spring clip 30 is movable between a forward stop position corresponding to the locking position of the cam 25 and a rear stop position corresponding to the unlocking position of the cam 25. It is specified that, as this From the figures, the rear side is directed towards the seat foot 12 while the front side is directed to the opposite side.
  • At least one elastic member 34 is compressed between the plunger 1 6 and the body 1 1 when the plunger 1 6 is in the rest position.
  • two resilient members 34 constituted by springs positioned on either side of the screw 21 inside housings 35 each formed partly in the plunger 16 and partly in the body 11 are used. .
  • the following is described below with reference to FIGS. 3a to 3g the mounting of the fastener 10 according to the present invention on an aircraft rail 14.
  • the seat when the plunger is in the rest position, the seat can be installed in the rails 14 and slide freely inside thereof.
  • the springs 34 urge the plunger 16 downward.
  • the cam 25 which is in the locked state and thus blocks the ring 20 in translation (the spring clip 30 is then in front stop), all the parts remain in the up position so that the plunger 1 6 remains in position rest.
  • the screw 21 is then screwed by the operator following the arrow F2 to the predefined torque.
  • the ring 20 (locked in rotation by the body 1 1) goes up in the opposite direction to the rail 14.
  • the rail 14 is then clamped between the plunger 1 6 and the pins 13
  • the abutment 36 may for example be constituted by a flange extending outwardly from an outer periphery of the ring 20. The abutment of the ring 20 against the shoulder of the body 1 1 makes it possible to control the force clamping the fastener 10 on the rail 14.
  • the spring clip 30 is then rotated to its forward stop along the arrow F3. As illustrated in FIG. 3g, the cam 25 then moves into the locked position to secure the correct position of the fastener 10.
  • the operator has a visual indicator of the tight state of the fastener 10. Indeed, the fastener 10 is considered to be properly installed if the spring clip 30 is in the forward position and if the head of the screw 21 is pressed into the body 1 1. In the case where one of these two conditions is not verified, it means that the fastener 10 has not been properly installed on the corresponding rail 14.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

The invention relates mainly to an aircraft seat attachment (10) which comprises: a body (11) fastened to an aircraft seat leg (12); at least one stud (13) secured to said body (11); and a plunger (16) mounted so as to be translatably mobile relative to said body (11) so as to provide a fastening of said seat attachment (10) onto a rail by clamping a lip of said rail between said stud (13) and said plunger (16), characterised in that said seat attachment (10) includes a system (17) for releasing said plunger (16).

Description

ATTACHE DE SIÈGE D'AÉRONEF MUNIE D'UN SYSTÈME DE  AIRCRAFT SEAT ATTACHMENT WITH AN AIRCRAFT SYSTEM
DÉBRAYAGE DU PLONGEUR  RELEASE OF THE DIVER
La présente invention porte sur une attache de siège d'aéronef munie d'un système de débrayage du plongeur. The present invention relates to an aircraft seat fastener provided with a plunger release system.
De façon connue en soi, les sièges passagers d'avions civils sont généralement montés sur un rail constitué par un profilé présentant une lèvre supérieure sur laquelle l'attache du siège est serrée. Cette lèvre est usinée pour permettre l'insertion de la partie inférieure de l'attache. In a manner known per se, the passenger seats of civil aircraft are generally mounted on a rail constituted by a profile having an upper lip on which the seat fastener is tightened. This lip is machined to allow the insertion of the lower part of the fastener.
Un siège est généralement fixé sur le rail au moyen de trois attaches au minimum, typiquement quatre, deux à l'avant du siège et deux à l'arrière. L'attache de siège doit assurer deux fonctions principales à savoir le serrage de l'attache sur la lèvre du rail pour éviter tout mouvement, et pour les attaches arrière, le transfert des charges longitudinales en cas de crash par exemple, du siège vers le rail. A seat is usually attached to the rail with at least three fasteners, typically four, two at the front of the seat and two at the back. The seat fastener must perform two main functions, namely the tightening of the fastener on the rail lip to prevent any movement, and for the rear fasteners, the transfer of the longitudinal loads in the event of a crash, for example from the seat to the seat. rail.
L'attache comprend à cet effet des tétons destinés à être positionnés sous la lèvre du rail. Les tétons étant fixes, l'attache comprend un plongeur mobile verticalement par rapport au corps de l'attache pour permettre un serrage du rail entre les tétons et le plongeur. Les attaches avec plongeur munies d'un ressort de rappel ne permettent pas de faire glisser le siège jusqu'à sa station. En effet, de telles attaches se crantent dès les premiers trous de rail. Par ailleurs, les attaches à plongeur par vis obligent lors du vissage à une opération de mise en place dans le tour du rail. The fastener comprises for this purpose pins to be positioned under the lip of the rail. The nipples being fixed, the clip comprises a plunger vertically movable relative to the body of the clip to allow a clamping of the rail between the pins and the plunger. Plungers with a spring return spring do not allow the seat to slide to the station. Indeed, such fasteners are notched at the first rail holes. Furthermore, the screw plunger fasteners require during screwing to a setting operation in the lathe of the rail.
L'invention vise à remédier efficacement à ces inconvénients en proposant une attache de siège d'aéronef comportant: The invention aims to remedy these drawbacks effectively by proposing an aircraft seat fastener comprising:
- un corps fixé à un pied de siège d'aéronef, a body attached to an aircraft seat leg,
- au moins un téton solidaire dudit corps, et  at least one nipple integral with said body, and
- un plongeur monté mobile en translation par rapport audit corps de manière à assurer une fixation de ladite attache de siège sur un rail par serrage d'une lèvre dudit rail entre ledit téton et ledit plongeur, caractérisée en ce que ladite attache de siège intègre un système de débrayage dudit plongeur. a plunger movably mounted in translation relative to said body so as to fix said seat fastener to a rail by clamping a lip of said rail between said stud and said plunger, characterized in that said seat clip incorporates a clutch release system of said plunger.
L'invention permet ainsi d'amener le siège à sa station sans outil extérieur, de venir ensuite libérer de façon automatique les plongeurs au moyen du système de débrayage, de les serrer avec un couple prédéfini, puis de vérifier de façon visuelle que le système est bien en place pour s'affranchir d'un "faux verrouillage". Le cycle de montage et démontage est en outre simplifié, dans la mesure où le passage de la position de montage à la position de démontage ne nécessite qu'un simple dévissage. The invention thus makes it possible to bring the seat to its station without external tools, to then automatically release the plungers by means of the clutch release system, to tighten them with a predefined torque, and then to visually verify that the system is in place to get rid of a "false lock". The assembly and disassembly cycle is further simplified, since the transition from the mounting position to the disassembly position requires only a simple unscrewing.
Selon une réalisation, ledit système de débrayage comporte une bague montée mobile en translation par rapport audit corps, ladite bague coopérant par l'intermédiaire d'une liaison hélicoïdale avec une vis sur laquelle est monté ledit plongeur. According to one embodiment, said disengaging system comprises a ring mounted to move in translation relative to said body, said ring cooperating via a helical connection with a screw on which said plunger is mounted.
Selon une réalisation, ledit plongeur est monté sur une portion d'extrémité de ladite vis et vient en contact contre une butée portée par ladite vis. Selon une réalisation, ledit plongeur est mobile entre une position de repos dans laquelle ledit plongeur est en retrait par rapport audit rail et une position active dans laquelle ledit plongeur est en appui contre la lèvre dudit rail. According to one embodiment, said plunger is mounted on an end portion of said screw and comes into contact against an abutment carried by said screw. According to one embodiment, said plunger is movable between a rest position in which said plunger is recessed relative to said rail and an active position in which said plunger bears against the lip of said rail.
Selon une réalisation, au moins un organe élastique est monté comprimé entre ledit plongeur et ledit corps lorsque ledit plongeur est en position de repos. According to one embodiment, at least one resilient member is compressed between said plunger and said body when said plunger is in the rest position.
Selon une réalisation, ladite attache de siège comporte deux organes élastiques constitués par deux ressorts positionnés de part et d'autre de ladite vis à l'intérieur de logements ménagés chacun en partie dans ledit plongeur et en partie dans ledit corps. According to one embodiment, said seat fastener comprises two resilient members constituted by two springs positioned on either side of said screw inside recesses each formed partly in said plunger and partly in said body.
Selon une réalisation, un organe de verrouillage est apte à faire passer ladite bague: - d'un état verrouillé dans lequel ledit organe de verrouillage bloque un déplacement de ladite bague par rapport audit corps, According to one embodiment, a locking member is able to pass said ring: a locked state in which said locking member blocks a displacement of said ring relative to said body,
- à un état déverrouillé dans lequel ledit organe de verrouillage autorise un déplacement de ladite bague par rapport audit corps pour faire passer automatiquement ledit plongeur de la position de repos à ladite position active suite à une décompression dudit organe élastique.  - In an unlocked state wherein said locking member allows a movement of said ring relative to said body to automatically move said plunger from the rest position to said active position following decompression of said elastic member.
Selon une réalisation, ladite bague comporte une butée destinée à venir en contact avec le corps suite à un vissage de ladite vis effectué après le passage de ladite bague dans un état déverrouillé. Cela permet de contrôler l'effort de serrage appliqué sur le rail. According to one embodiment, said ring comprises a stop intended to come into contact with the body following a screwing of said screw made after the passage of said ring in an unlocked state. This makes it possible to control the clamping force applied to the rail.
Selon une réalisation, ledit organe de verrouillage est constitué par une came montée mobile en rotation par rapport audit corps entre une première position angulaire, dite position de verrouillage, dans laquelle ladite came coopère avec une gorge de forme correspondante réalisée dans ladite bague, et une deuxième position angulaire, dite position de déverrouillage, dans laquelle ladite came est dégagée de ladite gorge ménagée dans la bague. According to one embodiment, said locking member is constituted by a cam rotatably mounted relative to said body between a first angular position, said locking position, wherein said cam cooperates with a correspondingly shaped groove made in said ring, and a second angular position, said unlocking position, wherein said cam is disengaged from said groove in the ring.
Selon une réalisation, le passage d'une position à l'autre de ladite came est apte à être effectué au moyen d'un dispositif de manœuvre. According to one embodiment, the passage from one position to the other of said cam is adapted to be performed by means of an operating device.
Selon une réalisation, ledit dispositif de manœuvre est constitué par un clip ressort ayant chacune de ses extrémités coopérant avec une rainure correspondante ménagée dans une face de ladite came. According to one embodiment, said operating device is constituted by a spring clip having each of its ends cooperating with a corresponding groove formed in a face of said cam.
Selon une réalisation, ledit clip ressort est mobile entre une position de butée avant correspondant à ladite position de verrouillage dudit organe de verrouillage et une position de butée arrière correspondant à ladite position de déverrouillage dudit organe de verrouillage. According to one embodiment, said spring clip is movable between a forward stop position corresponding to said locking position of said locking member and a rear stop position corresponding to said unlocking position of said locking member.
Bien entendu les différentes caractéristiques, variantes et/ou formes de réalisation de la présente invention peuvent être associées les unes avec les autres selon diverses combinaisons dans la mesure où elles ne sont pas incompatibles ou exclusives les unes des autres. Of course, the various features, variants and / or embodiments of the present invention may be associated with each other. others in various combinations to the extent that they are not incompatible or exclusive of each other.
La présente invention sera mieux comprise et d'autres caractéristiques et avantages apparaîtront encore à la lecture de la description détaillée qui suit comprenant des modes de réalisation donnés à titre illustratif en référence avec les figures annexées, présentés à titre d'exemples non limitatifs, qui pourront servir à compléter la compréhension de la présente invention et l'exposé de sa réalisation et, le cas échéant, contribuer à sa définition, sur lesquelles: The present invention will be better understood and other characteristics and advantages will become apparent on reading the following detailed description comprising embodiments given by way of illustration with reference to the appended figures, presented by way of non-limiting examples, which may be used to complete the understanding of the present invention and the presentation of its realization and, where appropriate, to contribute to its definition, in which:
- Les figures 1 et 2 montrent respectivement des vues en perspective et en perspective éclatée d'une attache selon la présente invention;  - Figures 1 and 2 respectively show exploded perspective and perspective views of a fastener according to the present invention;
- Les figures 3a à 3g illustrent les différentes étapes de montage de l'attache de siège selon la présente invention;  - Figures 3a to 3g illustrate the different steps of mounting the seat fastener according to the present invention;
- Les figures 4a et 4b illustrent les étapes de démontage de l'attache de siège selon la présente invention.  - Figures 4a and 4b illustrate the steps of disassembly of the seat fastener according to the present invention.
Il est à noter que, sur les figures, les éléments structurels et/ou fonctionnels communs aux différents modes de réalisation peuvent présenter les mêmes références. Ainsi, sauf mention contraire, de tels éléments disposent de propriétés structurelles, dimensionnelles et matérielles identiques. It should be noted that, in the figures, the structural and / or functional elements common to the various embodiments may have the same references. Thus, unless otherwise stated, such elements have identical structural, dimensional and material properties.
Les figures 1 et 2 montre une vue en perspective d'une attache 10 munie d'un corps 1 1 fixé à un pied de siège 12 d'aéronef et de tétons 13 solidaires du corps 1 1 destinés à venir en contact contre une face inférieure d'une lèvre d'un rail 14 montré sur la figure 3a. Figures 1 and 2 shows a perspective view of a fastener 10 provided with a body 1 1 attached to an aircraft seat leg 12 and pins 13 integral with the body 1 1 intended to come into contact against a lower face a lip of a rail 14 shown in Figure 3a.
Un plongeur 1 6 mobile en translation par rapport au corps 1 1 permet d'assurer la fixation de l'attache 10 sur un rail 14 d'aéronef par serrage du rail 14 entre les tétons 13 et le plongeur 1 6. A plunger 16 movable in translation relative to the body 1 1 makes it possible to secure the fastener 10 to an aircraft rail 14 by clamping the rail 14 between the studs 13 and the plunger 1 6.
Comme cela est visible sur la figure 2, l'attache 10 intègre un système de débrayage 17 du plongeur 1 6 muni d'une bague 20 montée mobile en translation par rapport au corps 1 1 . La bague 20 coopère par l'intermédiaire d'une liaison hélicoïdale avec une vis 21 sur laquelle est monté le plongeur 16. La bague 20 est bloquée en rotation par rapport au corps 1 1 et est mobile en translation par rapport au corps 1 1 . As can be seen in FIG. 2, the fastener 10 incorporates a clutch release system 17 of the plunger 16 provided with a ring 20 mounted to move in translation relative to the body 11. The ring 20 cooperates via a helical connection with a screw 21 on which is mounted the plunger 16. The ring 20 is locked in rotation relative to the body 1 1 and is movable in translation relative to the body January 1.
Le plongeur 1 6 est lié en translation avec la vis 21 et est mobile entre une position de repos dans laquelle le plongeur 1 6 est en retrait par rapport au rail 14 et une position active dans laquelle le plongeur 16 est en appui contre la lèvre du rail 14. En l'occurrence, le plongeur 1 6 est monté sur une portion d'extrémité de la vis 21 de forme tronconique et vient en contact contre une butée 24 portée par la vis 21 . La butée 24 pourra être constituée par exemple par un anneau élastique inséré dans une rainure réalisée en périphérie externe de la vis 21 . The plunger 1 6 is linked in translation with the screw 21 and is movable between a rest position in which the plunger 1 6 is set back relative to the rail 14 and an active position in which the plunger 16 bears against the lip of the rail 14. In this case, the plunger 1 6 is mounted on an end portion of the screw 21 of frustoconical shape and comes into contact against a stop 24 carried by the screw 21. The abutment 24 may be constituted for example by an elastic ring inserted in a groove formed at the outer periphery of the screw 21.
Un organe de verrouillage 25 est apte à faire passer la bague 20 d'un état verrouillé dans lequel l'organe 25 bloque le déplacement de la bague 20 par rapport au corps 1 1 à un état déverrouillé dans lequel l'organe 25 autorise le déplacement de la bague 20 par rapport au corps 1 1 notamment pour faire passer le plongeur 1 6 de la position de repos à la position active. A locking member 25 is able to pass the ring 20 of a locked state in which the member 25 blocks the displacement of the ring 20 relative to the body 1 1 to an unlocked state in which the member 25 allows the displacement of the ring 20 relative to the body 1 1 in particular for passing the plunger 1 6 from the rest position to the active position.
A cet effet, l'organe de verrouillage 25 est constitué par exemple par une came montée mobile en rotation par rapport au corps 1 1 entre une première position angulaire, dite position de verrouillage, dans laquelle la came 25 coopère avec une gorge 26 de forme correspondante réalisée dans la bague 20, et une deuxième position angulaire, dite position de déverrouillage, dans laquelle la came 25 est dégagée de la gorge 26 ménagée dans la bague 20. La came 25 pourra par exemple prendre la forme d'une pièce de forme cylindrique munie d'un méplat à sa périphérie externe. For this purpose, the locking member 25 is constituted for example by a cam mounted to rotate relative to the body 1 1 between a first angular position, said locking position, in which the cam 25 cooperates with a groove 26 of shape corresponding in the ring 20, and a second angular position, said unlocking position, wherein the cam 25 is disengaged from the groove 26 formed in the ring 20. The cam 25 may for example take the form of a shaped part cylindrical provided with a flat at its outer periphery.
Le passage d'une position à l'autre de la came 25 est effectué au moyen d'un dispositif de manœuvre 30 constitué par exemple par un clip ressort ayant chacune de ses extrémités coopérant avec une rainure 31 correspondante ménagée dans une face d'extrémité de la came 25. Le clip ressort 30 est mobile entre une position de butée avant correspondant à la position de verrouillage de la came 25 et une position de butée arrière correspondant à la position de déverrouillage de la came 25. On précise que, comme cela ressort des figures, le côté arrière est dirigé vers le pied de siège 12 tandis que le côté avant est dirigé du côté opposé. The passage from one position to the other of the cam 25 is effected by means of an operating device 30 constituted for example by a spring clip having each of its ends cooperating with a corresponding groove 31 formed in an end face. of the cam 25. The spring clip 30 is movable between a forward stop position corresponding to the locking position of the cam 25 and a rear stop position corresponding to the unlocking position of the cam 25. It is specified that, as this From the figures, the rear side is directed towards the seat foot 12 while the front side is directed to the opposite side.
Au moins un organe élastique 34 est monté comprimé entre le plongeur 1 6 et le corps 1 1 lorsque le plongeur 1 6 est en position de repos. En l'occurrence, on utilise deux organes élastiques 34 constitués par des ressorts positionnés de part et d'autre de la vis 21 à l'intérieur de logements 35 ménagés chacun en partie dans le plongeur 1 6 et en partie dans le corps 1 1 . On décrit ci-après en référence avec les figures 3a à 3g le montage de l'attache 10 selon la présente invention sur un rail 14 d'aéronef. At least one elastic member 34 is compressed between the plunger 1 6 and the body 1 1 when the plunger 1 6 is in the rest position. In this case, two resilient members 34 constituted by springs positioned on either side of the screw 21 inside housings 35 each formed partly in the plunger 16 and partly in the body 11 are used. . The following is described below with reference to FIGS. 3a to 3g the mounting of the fastener 10 according to the present invention on an aircraft rail 14.
Comme cela est illustré par la figure 3a, lorsque le plongeur est dans la position repos, le siège peut être installé dans les rails 14 et glisser librement à l'intérieur de ceux-ci. Les ressorts 34 sollicitent le plongeur 1 6 vers le bas. Grâce à la came 25 qui se trouve dans l'état verrouillé et bloque donc la bague 20 en translation (le clip ressort 30 est alors en butée avant), toutes les pièces restent en position haute en sorte que le plongeur 1 6 reste en position de repos. As illustrated in Figure 3a, when the plunger is in the rest position, the seat can be installed in the rails 14 and slide freely inside thereof. The springs 34 urge the plunger 16 downward. With the cam 25 which is in the locked state and thus blocks the ring 20 in translation (the spring clip 30 is then in front stop), all the parts remain in the up position so that the plunger 1 6 remains in position rest.
Lorsque le siège est située à la position du rail 14 souhaitée par l'opérateur, ce dernier tourne le clip ressort 30 jusqu'à sa butée arrière suivant la flèche F1 , tel que montré sur la figure 3b. Comme cela est illustré par la figure 3c, la rotation du clip ressort 30 fait tourner la came 25 de manière à la faire passer dans un état déverrouillé. Dans cette position, la came 25 libère la bague 20 en translation. Du fait de l'action des ressorts 34 qui se décompriment, le plongeur 1 6 passe de la position de repos à la position active. Après la libération automatique du plongeur 16, l'opérateur s'assure que les protubérances du plongeur 16 pénètrent à l'intérieur de trous correspondants du rail 14. When the seat is located at the position of the rail 14 desired by the operator, the latter turns the spring clip 30 to its rear stop along the arrow F1, as shown in Figure 3b. As shown in FIG. 3c, the rotation of the spring clip 30 causes the cam 25 to rotate to an unlocked state. In this position, the cam 25 releases the ring 20 in translation. Due to the action of the springs 34 which are decompressed, the plunger 1 6 goes from the rest position to the active position. After the automatic release of the plunger 16, the operator ensures that the protuberances of the plunger 16 penetrate inside corresponding holes of the rail 14.
Comme cela est illustré par la figure 3d, la vis 21 est ensuite vissée par l'opérateur suivant la flèche F2 au couple prédéfini. Comme cela est illustré par la figure 3e, lors du vissage de la vis 21 , la bague 20 (bloquée en rotation par le corps 1 1 ) remonte dans la direction opposée au rail 14. Lorsque la bague 20 entre au contact vertical avec un épaulement du corps 1 1 via la butée 36, le rail 14 est alors serré entre le plongeur 1 6 et les tétons 13. La butée 36 pourra par exemple être constituée par une collerette s'étendant vers l'extérieur depuis une périphérie externe de la bague 20. La mise en butée de la bague 20 contre l'épaulement du corps 1 1 permet de contrôler l'effort de serrage de l'attache 10 sur le rail 14. As illustrated by Figure 3d, the screw 21 is then screwed by the operator following the arrow F2 to the predefined torque. As is illustrated in FIG. 3e, when the screw 21 is screwed on, the ring 20 (locked in rotation by the body 1 1) goes up in the opposite direction to the rail 14. When the ring 20 comes into vertical contact with a shoulder of the body 1 1 via the stop 36, the rail 14 is then clamped between the plunger 1 6 and the pins 13 The abutment 36 may for example be constituted by a flange extending outwardly from an outer periphery of the ring 20. The abutment of the ring 20 against the shoulder of the body 1 1 makes it possible to control the force clamping the fastener 10 on the rail 14.
Comme cela est illustré par la figure 3f, le clip ressort 30 est ensuite tourné jusqu'à sa butée avant suivant la flèche F3. Comme cela est illustré par la figure 3g, la came 25 passe alors dans la position verrouillée pour sécuriser la bonne position de l'attache 10. As shown in Figure 3f, the spring clip 30 is then rotated to its forward stop along the arrow F3. As illustrated in FIG. 3g, the cam 25 then moves into the locked position to secure the correct position of the fastener 10.
Il est à noter que l'opérateur dispose d'un indicateur visuel de l'état serré de l'attache 10. En effet, l'attache 10 est considérée comme convenablement installée si le clip ressort 30 est en position avant et si la tête de la vis 21 est enfoncée dans le corps 1 1 . Dans le cas où une de ces deux conditions n'est pas vérifiée, cela signifie que l'attache 10 n'a pas été convenablement installée sur le rail 14 correspondant. It should be noted that the operator has a visual indicator of the tight state of the fastener 10. Indeed, the fastener 10 is considered to be properly installed if the spring clip 30 is in the forward position and if the head of the screw 21 is pressed into the body 1 1. In the case where one of these two conditions is not verified, it means that the fastener 10 has not been properly installed on the corresponding rail 14.
On décrit ci-après en référence avec les figures 4a et 4b le démontage de l'attache 10 de siège selon la présente invention. The following is described below with reference to FIGS. 4a and 4b the disassembly of the seat fastener 10 according to the present invention.
Comme cela est illustré par la figure 4a, l'opérateur dévisse la vis 21 suivant la flèche F4. As shown in Figure 4a, the operator unscrews the screw 21 along the arrow F4.
Comme cela est illustré par la figure 4b, la bague 20 étant bloquée en translation par la came 25, cela a pour effet de faire remonter la vis 21 avec le plongeur 1 6. Lorsque le plongeur 1 6 vient en butée avec la bague 20, le plongeur 16 revient en position de repos tandis que les ressorts 34 reviennent à leur état comprimé. As is illustrated in FIG. 4b, the ring 20 being locked in translation by the cam 25, this has the effect of raising the screw 21 with the plunger 1 6. When the plunger 1 6 abuts with the ring 20, the plunger 16 returns to the rest position while the springs 34 return to their compressed state.
Bien évidemment, l'invention n'est pas limitée aux modes de réalisation décrits précédemment et fournis uniquement à titre d'exemple. Elle englobe diverses modifications, formes alternatives et autres variantes que pourra envisager l'homme du métier dans le cadre de la présente invention et notamment toutes combinaisons des différents modes de fonctionnement décrits précédemment, pouvant être pris séparément ou en association. Of course, the invention is not limited to the embodiments described above and provided solely by way of example. It encompasses various modifications, alternative forms and other variants that may be consider the skilled person in the context of the present invention and in particular any combination of the different modes of operation described above, which can be taken separately or in combination.

Claims

REVENDICATIONS
1 . Attache de siège d'aéronef (10) comportant: 1. Aircraft seat fastener (10) comprising:
- un corps (1 1 ) fixé à un pied de siège d'aéronef (12),  a body (1 1) fixed to an aircraft seat leg (12),
- au moins un téton (13) solidaire dudit corps (1 1 ), et at least one stud (13) integral with said body (1 1), and
- un plongeur (1 6) monté mobile en translation par rapport audit corps (1 1 ) de manière à assurer une fixation de ladite attache de siège (10) sur un rail (14) par serrage d'une lèvre dudit rail (14) entre ledit téton (13) et ledit plongeur (1 6),  - a plunger (1 6) mounted movable in translation relative to said body (1 1) so as to ensure attachment of said seat fastener (10) on a rail (14) by clamping a lip of said rail (14) between said pin (13) and said plunger (1 6),
caractérisée en ce que ladite attache de siège (10) intègre un système de débrayage (17) dudit plongeur (1 6). characterized in that said seat fastener (10) incorporates a clutch release system (17) of said plunger (1 6).
2. Attache de siège (10) selon la revendication 1 , caractérisée en ce que ledit système de débrayage (17) comporte une bague (20) montée mobile en translation par rapport audit corps (1 1 ), ladite bague (20) coopérant par l'intermédiaire d'une liaison hélicoïdale avec une vis (21 ) sur laquelle est monté ledit plongeur (1 6). 2. seat fastener (10) according to claim 1, characterized in that said clutch system (17) comprises a ring (20) mounted movable in translation relative to said body (1 1), said ring (20) cooperating by via a helical connection with a screw (21) on which said plunger (1 6) is mounted.
3. Attache de siège (10) selon la revendication 2, caractérisée en ce que ledit plongeur (1 6) est monté sur une portion d'extrémité de ladite vis (21 ) et vient en contact contre une butée (24) portée par ladite vis (21 ). 3. seat fastener (10) according to claim 2, characterized in that said plunger (1 6) is mounted on an end portion of said screw (21) and comes into contact against an abutment (24) carried by said screw (21).
4. Attache de siège (10) selon l'une quelconque des revendications 1 à 3, caractérisée en ce que ledit plongeur (1 6) est mobile entre une position de repos dans laquelle ledit plongeur (1 6) est en retrait par rapport audit rail (14) et une position active dans laquelle ledit plongeur (1 6) est en appui contre la lèvre dudit rail (14). 4. A seat fastener (10) according to any one of claims 1 to 3, characterized in that said plunger (1 6) is movable between a rest position in which said plunger (1 6) is set back from said rail (14) and an active position in which said plunger (1 6) bears against the lip of said rail (14).
5. Attache de siège (10) selon l'une quelconque des revendications 1 à 3, caractérisée en ce qu'au moins un organe élastique (34) est monté comprimé entre ledit plongeur (1 6) et ledit corps (1 1 ) lorsque ledit plongeur (1 6) est en position de repos. 5. seat fastener (10) according to any one of claims 1 to 3, characterized in that at least one elastic member (34) is compressed between said plunger (1 6) and said body (1 1) when said plunger (1 6) is in the rest position.
6. Attache de siège (10) selon la revendication 5, caractérisée en ce qu'elle comporte deux organes élastiques (34) constitués par deux ressorts (34) positionnés de part et d'autre de ladite vis (21 ) à l'intérieur de logements (35) ménagés chacun en partie dans ledit plongeur (1 6) et en partie dans ledit corps (1 1 ). 6. seat fastener (10) according to claim 5, characterized in that it comprises two elastic members (34) constituted by two springs (34). positioned on either side of said screw (21) inside housings (35) each formed in part in said plunger (1 6) and partly in said body (1 1).
7. Attache de siège (10) selon la revendication 5 ou 6, caractérisée en ce qu'un organe de verrouillage (25) est apte à faire passer ladite bague (20)Seat fastener (10) according to claim 5 or 6, characterized in that a locking member (25) is adapted to pass said ring (20).
- d'un état verrouillé dans lequel ledit organe de verrouillage (25) bloque un déplacement de ladite bague (20) par rapport audit corps (1 1 ), a locked state in which said locking member (25) blocks a displacement of said ring (20) with respect to said body (1 1),
- à un état déverrouillé dans lequel ledit organe de verrouillage (25) autorise un déplacement de ladite bague (20) par rapport audit corps (1 1 ) pour faire passer automatiquement ledit plongeur (1 6) de la position de repos à ladite position active suite à une décompression dudit organe élastique (34).  an unlocked state in which said locking member allows a displacement of said ring relative to said body to automatically move said plunger from the rest position to said active position; following decompression of said elastic member (34).
8. Attache de siège (10) selon la revendication 7, caractérisée en ce que ladite bague (20) comporte une butée (36) destinée à venir en contact avec le corps (1 1 ) suite à un vissage de ladite vis (21 ) effectué après le passage de ladite bague (20) dans un état déverrouillé. 8. seat fastener (10) according to claim 7, characterized in that said ring (20) comprises a stop (36) intended to come into contact with the body (1 1) following a screwing of said screw (21). performed after the passage of said ring (20) in an unlocked state.
9. Attache de siège (10) selon la revendication 7 ou 8, caractérisée en ce que ledit organe de verrouillage (25) est constitué par une came (25) montée mobile en rotation par rapport audit corps (1 1 ) entre une première position angulaire, dite position de verrouillage, dans laquelle ladite came (25) coopère avec une gorge (26) de forme correspondante réalisée dans ladite bague (20), et une deuxième position angulaire, dite position de déverrouillage, dans laquelle ladite came (25) est dégagée de ladite gorge (26) ménagée dans la bague (20). 9. A seat fastener (10) according to claim 7 or 8, characterized in that said locking member (25) is constituted by a cam (25) rotatably mounted relative to said body (1 1) between a first position angular, said locking position, wherein said cam (25) cooperates with a groove (26) of corresponding shape formed in said ring (20), and a second angular position, said unlocking position, wherein said cam (25) is disengaged from said groove (26) formed in the ring (20).
10. Attache de siège (10) selon la revendication 9, caractérisée en ce que le passage d'une position à l'autre de ladite came (25) est apte à être effectué au moyen d'un dispositif de manœuvre (30). 10. seat fastener (10) according to claim 9, characterized in that the passage from one position to the other of said cam (25) is adapted to be effected by means of a maneuvering device (30).
1 1 . Attache de siège (10) selon la revendication 10, caractérisée en ce que ledit dispositif de manœuvre (30) est constitué par un clip ressort (30) ayant chacune de ses extrémités coopérant avec une rainure (31 ) correspondante ménagée dans une face de ladite came (25). 1 1. Seat fastener (10) according to claim 10, characterized in that said operating device (30) is constituted by a spring clip (30) each having its ends cooperating with a corresponding groove (31) formed in a face of said cam (25).
12. Attache de siège (10) selon la revendication 1 1 , caractérisée en ce que ledit clip ressort (30) est mobile entre une position de butée avant correspondant à ladite position de verrouillage dudit organe de verrouillage (25) et une position de butée arrière correspondant à ladite position de déverrouillage dudit organe de verrouillage (25). Seat fastener (10) according to claim 1 1, characterized in that said spring clip (30) is movable between a forward stop position corresponding to said locking position of said locking member (25) and a stop position rear corresponding to said unlocking position of said locking member (25).
EP16732648.7A 2015-06-30 2016-06-28 Aircraft seat attachment provided with a system for releasing the plunger Active EP3317140B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1556137 2015-06-30
PCT/EP2016/065007 WO2017001400A1 (en) 2015-06-30 2016-06-28 Aircraft seat attachment provided with a system for releasing the plunger

Publications (2)

Publication Number Publication Date
EP3317140A1 true EP3317140A1 (en) 2018-05-09
EP3317140B1 EP3317140B1 (en) 2020-04-08

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WO (1) WO2017001400A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899167A (en) * 1959-08-11 elsner
DE19812490C2 (en) * 1998-03-21 2002-03-14 Daimler Chrysler Ag Device for releasably attaching a seat, in particular a vehicle seat, to a longitudinal rail
WO2012100152A1 (en) * 2011-01-20 2012-07-26 Weber Aircraft Llc Seat track fitting
FR2973338B1 (en) * 2011-03-30 2013-05-10 Attax SYSTEM FOR FIXING A SEAT, IN PARTICULAR AN AIRCRAFT ON THE SAME

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EP3317140B1 (en) 2020-04-08

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